Summer is coming to a close but the heat has become nearly unbearable again when a cattle truck rolls into Heartland. Inside, Scott and the hands find a load of sick and thirsty horses, and the driver turns out to be Ty's father.
A runaway dog helps bring together a boy in an orphanage whom nobody wants and the dog's human family, the parents of which are trying to have another child through a surrogate mother.
When a black family tries to move next door to a successful doctor in an exclusive community, Jonathan and Mark must help the doctor confront a secret he's kept from everyone, including his own family.
In their youth, the Banner siblings made it big as a rock group, but at the height of their fame, the group fell apart. Now, fifteen years later the siblings reunite in their hometown to take care of their mother.
When a by-the-book army veteran takes over as commandant at a military academy, he instantly squares off with the school's new Dean of Academics. But when they are forced to work together to help save the school, sparks fly.